Even little devotion on Lord Krishna will be helpfull to remove sins,problems and would be helpfull in salvation for the devotee. Many sages had done tapas for many thousands of years and could see Lord Krishna in his incarnation and get grace of Lord Krishna and get salvated,and could get his love etc. By reading & following the sacred words of Lord Krishna's Bhagavadgita will attain salvation and many more goodness.

Lord Krishna has much more beautiness,power etc. as much as unlimited.